Read Edit View history 半圆仪 bànyuányí protractor Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 半圆仪/半圓儀 · bànyuányí · protractor 2026/03/04 半圆仪 / 半圓儀 bànyuányí protractor protractor 请用半圆仪量一下这个角的大小。 noun created sense Mar 4, 2026, 02:25 AM